Separable fastener



F. S. CARR. 'SEPARABL'E FASTENER.

APPLICATION FILED JAN. I6. i920.

Patented Aug. 9, 1921.

naar rias FRED s. CARR, or NEWTON. MASSACHUSETTS, lAssmann eraf erica.

To cana FASTENER i COMPANY OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION SOFKMAINE.

sEr-'ARABLE FAsTrNER.

Specification of Letters Patent.

Patented Augf), 1921.

Application led January 16, 1920. Serial: No. 351,788.

fasteners in which one or both parts are adapted to be metallically secured to theirV carrying fabrics. l

It is among the objects of the invention to provide a separable fastener in which the fabric carrying the studl and socket shall be brought into adjacency, thereby. avoiding that separation which normally amounts to substantially the thickness of thestud and socket when engaged one with the'other.

Referring to the drawings, in which I have shown an illustrative embodiment of one form of my invention: l

Figure 1 is an elevation of two pieces of fabric held together by a preferred form of fastener;

Fig. 2 is a section on the line 2-2 of Fig. l;

Fig. 3 shows two pieces of fabric held together by a plurality of such fasteners;

Fig. 4c is a plan view of the preferred form of socket prior to attachment thereof to the fabric; and A F ig. 5 is a section on the line 5 5 of Fig. 4, being partly in elevation.

Referring to the drawings and tothe preferred form of my invention selected for illustrative purposes, I have shown a stud 6 secured to fabric 7, preferably expanding the base 8 into a stud-securing element, herein shown as a flanged disk 9, thereby to secure the stud to the fabric, preferably without perforation of the fabric, and with the neck of the stud closely adjacent the general plane of the fabric 7 The preferred form of securing the stud herein illustrated and described is claimed in my copending application filed herewith, Serial No. 351,780.

v The preferred form of socket illustrated herein includes a casing 10 containing a spring 11, the casing 10 preferably having a stud-receivingaperture l2 which is notched to provide a lateral lock and is described 1n my copending application, Serial No.

307,111, filed June 27, 1919. This socket is l preferably applied to the socket-carrying fabric 13 in such a way as to bring the face of the fabric 13 approximately in line with that face of the socket from which the stud 1s intended to enter. I preferably perform this attachment by providing a socket-attaching element 14 having a flanged-over rim 15 into which may expand a part carried by 'or forming a .part of the socket, herein shownas an expansible disk 16 divided into six parts, of whichthree are preferably as shown thrown downward to engage beneath the flange -17 of the socket and of which three are thrown upward so that when the casing 10 is pressed against the socket-engaging part 14.-, with the fabric 13 interposed therebetween, the projecting portions of the part 16 will expand and press the fabric beneath the flange 15, thus securing the socket tothe fabric while the fabric is thrown forward into a position approximating the plane of the face of the socket.V

Where the two pieces of fabric to which i the stud and ,socket are secured are thus .thrown into adjacency, a lateral strain on the two pieces of .fabric will produce Substantially no tipping movement between the stud and socket and therefore the stud and socket will'not tend to become accidentally unfastened under lateral strain.

It will be understood that I use the wordV fabric in its broader sense to include not only woven materials, butanyflexible carrying medium.

While I have shown and described a preferred form of one embodiment of my invention, it will be understood ythat changes involving omission, substitution, alteration and reversal ofV parts, and even changes in the mode of operation, may be made without departing from the scope of my invention,l

which is best defined in the following claims.

Claims: v l Y 1. A socket for separable fasteners having a casing for location on one side of the fabric to which the socket "is to be attached, a socket-securing element having a flanged- .over rim for location on the opposite side of the fabric lto which the socket is to be attached, said casing providing expansiblev means adapted to be pressed into said socket-` securing element, with the fabric between said expansibie means Iand the socket-securing element, thereby to press the 'fabric beneath the fia-nge of 7he Socket-securing eie- Vment while said expsnsible means is eX- panded by pressure exerted through jche fabrio against the socket-securing element.

2. A socke for separable fasteners having a dished easing providing` a Hnge,V and an vexpansible part secured to said easing'by said Harige; and soeket-seeuring means including a flanged-over 'beneath Ywhich said expsnsible part Ina-y press the fabric to secure the socket to the fabric and hold said parts in assembled relationship.

n testimony whereof, I have signed my name to this specification.

FRED S. CARR. 

